Pohang University of Science and Technology · Materials Science
Professor Jeyoung Park's research lab specializes in advanced polymer science and sustainable materials, focusing on the development of functional polymers and nanomaterials for environmental and biomedical applications. The lab pioneers innovative polymer architectures—such as star-shaped rod–coil copolymers and chitin/chitosan-based nanomaterials—aimed at enhancing recycling efficiency, enabling upcycling of plastic waste, and creating biodegradable, high-performance materials. Key research directions include green polymer synthesis, multiscale nanostructure engineering, and translational applications in food packaging, biomedicine, and environmental remediation.
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Human society has become increasingly reliant on plastic because it allows for convenient and sanitary living. However, recycling rates are currently low, which means that the majority of plastic waste ends up in landfills or the ocean. Increasing recycling and upcycling rates is a critical strategy for addressing the issues caused by plastic pollution, but there are several technical limitations to overcome. This article reviews advancements in polymer technology that aim to improve the efficie
Nanochitin and nanochitosan (with random-copolymer-based multiscale architectures of glucosamine and N-acetylglucosamine units) have recently attracted immense attention for the development of green, sustainable, and advanced functional materials. Nanochitin and nanochitosan are multiscale materials from small oligomers, rod-shaped nanocrystals, longer nanofibers, to hierarchical assemblies of nanofibers. Various physical properties of chitin and chitosan depend on their molecular- and nanostruc
A series of star-shaped rod−coil diblock copolymers composed of poly(arylene ether sulfone) (PAES) as a core, and poly[2-(2-methoxyethoxy)ethyl methacrylate-co-oligo(ethylene glycol) methacrylate] [poly(MEO2MA-co-OEGMA)] as a shell was synthesized by combination of chain-growth condensation polymerization (CGCP) and atom transfer radical polymerization (ATRP). In the presence of 4-arm initiator (1), CGCP of 4-fluoro-4′-hydroxydiphenyl sulfone potassium salt (2) via nucleophilic aromatic substitu
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